Twenty years later.

Thunder Demon Sect!

The Medicine Hall, in a small courtyard, is lined with wooden frames on which various potions are placed.

Inside was a white-faced young man in black clothes, who was it if it wasn't Lu Chen? His face was very ugly, he looked seriously ill.

At this time, he was being complimented by many disciples of the Thunder Demon Sect:

"Junior Brother Zhang Chen, you can even refine the Demon Yuan Pill, it's really amazing."

"The alchemy of Junior Brother Zhang Chen is in our outer door, but no one can match it. I came this time to thank Junior Brother Zhang Chen. Without him, I'm afraid I would not be able to step into the fairyland."

"Junior Brother Zhang Chen, with your alchemy, you can participate in this alchemy competition. I heard that as long as you get the top ten, you can get the qualification to enter the thunder pond."

After hearing this, Lu Chen changed his expression and asked, "Brothers, what is Lei Chi?"

"Junior Brother Zhang Chen worshipped my Thunder Demon Sect not long ago. I don’t seem to know that this thunder pond is a good thing. It contains thunder source crystals. With its plastic body, you can forge your physique and make your physical body incredibly powerful. It is of great benefit to cultivate various thunder-attribute law bodies."

"Yes, Junior Brother Zhang Chen, I think your physique is weak. If you can enter the thunder pond, your physique will definitely be many times stronger than it is now."

"Junior Brother Zhang Chen, the alchemy test in the Medicine Palace is held only once in a hundred years. This time it will be held at the end of the year. Don't miss this opportunity."

Everyone rushed to introduce Zhang Chen, and many people advised him to participate in this alchemy competition.

"Thank you brothers, I will consider it carefully next time."

Lu Chen's heart moved, and said with his hands folded.

When everyone saw this, they stopped persuading him, and after chatting with him about other things, they all left.

"This thunder pond also has such functions. It seems that this alchemy contest, I have to participate in it."

Lu Chen returned to the house and sat down cross-legged on the jade bed, his eyes flashing, and he muttered softly.

After the battle with Fayan, he was seriously injured. He wanted to find a place to heal his injuries, but he didn't want to know that the Golden Demon, Earth Demon, Water Demon, and Fire Demon were looking for him.

Although the four clans did not show much fanfare, they were commanded by Jin Zhou, Shui Youyou, Huo Rong, and Tuku, so many people outside were looking for him.

At the right time, Lu Chen discovered that he was within the power of the Thunder Demon Sect, and he became an outer disciple of the Medicine Palace by bribing a disciple of the Thunder Demon Sect's Demon Medicine Hall.

The Thunder Demon Sect has a very wide range of influence, many times stronger than the Iron Wings and Silver Wings.

Rumor has it that more than ten million years ago, the lord of the Thunder Demon Sect, Lei Yuntian, was the younger brother of the patriarch of the Thunder Demon Clan.

Lei Yuntian is a strong ancestor, plus the elders and guardians of the Thunder Demon clan who supported him, immediately developed the Thunder Demon Sect.

Today, the Thunder Demon Sect is in charge of an area of ​​tens of millions of miles in a radius of tens of millions of miles.

Lu Chen valued this and joined the Thunder Demon Sect.

He needs a safe place to heal his injuries.

Twenty years have passed, Lu Chen has gradually repaired his injuries. Although he has not healed, he has improved a lot. At the same time, he has gained a reputation in the Thunder Demon Sect Medicine Hall with alchemy.

He refines the pill, the rate of pill formation is high, and most of them contain pill patterns, so many outside disciples ask him to refine the pill, and the past 20 years has been peaceful.

The only thing to do right now is to recover from the injury as soon as possible. The Lei Chi contains Lei Yuan Jing, which is of great help in repairing the scars of flesh and blood, and Lu Chen does not want to miss it.

Suddenly, Lu Chen flipped his palm and took out a mini black palace with the words Black Prison Hall on it.

"Huh!"

Lu Chen's body surface flashed light and disappeared on the jade bed. The next moment, he appeared in front of a huge and majestic palace.

This palace is called the Black Prison Palace!

Yes, Lu Chen was in the Black Prison Palace at this time.

The Black Prison Palace is an ancestral **** weapon with a huge internal space. There are many treasures left by the Black Prison Mountain Lord, and it is a rare place for cultivation.

"My deity, you are here."

As soon as Lu Chen entered the Black Prison Palace, he saw a burly old man who looked exactly like Fa Yan, but he called Lu Chen the deity.

"Second clone, have you stepped into the human wonderland?" Lu Chen said in surprise.

It turned out that in the past two decades, Lu Chen once again practiced Hunyuan Sanqingshu, and refined Fa Yan's body into his second clone.

Fa Yan is a strongest immortal, powerful, and he cultivates the power of darkness, and his background is much more powerful than that of the first clone, Lu Tian.

It's just that Lu Chen didn't expect that after only twenty years, the second clone had already stepped into the human wonderland. This speed of cultivation was truly shocking.

You know, it took him more than a thousand years to cultivate to the human fairyland.

It's really more popular than others.

"The deity is overwhelmed. Fayan Lao'er himself is the peak power of the fairyland. He has a deep foundation and you have continuously provided me with various cultivation and cultivation resources. It takes twenty years to step into the fairyland. It's a bit slow." The second clone said with a smile.

"That's true." Lu Chen nodded, and provided so many cultivation resources for the second clone, it was natural to cultivate to the human fairyland.

"My deity, haven't you recovered from your injury?" the second clone asked.

"Not yet, now I have recovered to the Heavenly Wonderland. It will take a while before I return to the Golden Wonderland." Lu Chen shook his head and said.

"We need to hurry up. The time for the extraterritorial demon to attack the fairyland is getting closer and closer," said the second clone.

"I understand, by the way, how do you feel about cultivating withered power?" Lu Chen asked.

In order to refine this second clone, Lu Chen passed the power of prosperity and death to him, and now he only cultivated the three attribute powers of space, time, and thunder.

"The cultivation is very smooth. The strength of the deity's previous cultivation is the source of the dryness, and the old demon Fayan cultivates the strength of the darkness. The source of the dryness is similar to the power of the darkness. When they practice, they complement each other." said the second avatar.

"Second clone, you have practiced Fa Yan's exercises. Take this Hunyuan Devil Blade. You will need it later. In addition, I will give you some defensive weapons."

Lu Chen said as he handed the Hunyuan Demon Blade to the second clone. For the second clone, he had spent his blood on cultivating it.

"Thank you dear."

The second clone put away the Hunyuan Demon Blade and bowed his hands to thank you.

"You don't need to thank you. You are my second clone. Helping you is equivalent to helping me." Lu Chen waved his hand gently and said, ‘You continue to practice, I will go out first. ’

"it is good!"

The second clone nodded.

"Huh!"

Lu Chen retracted his gaze and came out of the black prison hall, sitting cross-legged on the jade bed, thinking to himself.

The cultivation speed of the second clone was extremely fast, even surpassing that of the first clone Lu Tian. It seemed that it would not take long to cultivate to the Golden Wonderland, and he had to work hard.

You should know that after giving the source of Ku Rong to the second clone, Lu Chen felt that his cultivation speed was much faster than before, and his understanding of the law of time and space became stronger and stronger.

Although the power of space still stayed at the realm of Space Yuanzhan, Lu Chen felt that he was getting closer and closer to the realm of space fragmentation.

In addition, it is worth mentioning that Lu Chen has cultivated the power of time to the fifth stage, a long time.

Long River does not have much power. It is a great weapon for Lu Chen to go back to the past, imaginary future, and affect the opponent's mood.

Suddenly, Lu Chen's heart moved, thinking of something, and the spiritual power turned into a form and appeared in the spiritual world.

"I really didn't expect you to be a human monk."

Under the imprint of the Universe Soul, the Black Prison Mountain Lord remained motionless, looking at Lu Chen's spiritual form, and said with a shocked expression: "The full-attribute physique is really mysterious, even this seat can't see it."

"Black Prison Mountain Lord, you are a smart person. After knowing my secret, do you think I will let you go?" Lu Chen said lightly.

"Let's talk about it, what do you want?" Black Prison Mountain Master asked coldly.

As an ancestral god, he had never been so useless before, but was suppressed by the Universe Soul Seal for twenty years, which consumed most of his ambition.

Moreover, in the past twenty years, Lu Chen had not asked him to say a word, which made the Black Prison Mountain Master fearful.

It's just that the Black Prison Mountain Master clearly knew that Lu Chen didn't kill himself immediately, but instead left him behind. He would have something to do. Then, he still had the money to bargain.

"Black Prison Mountain Lord, you are the ancestral god, and it is not an exaggeration to call it a hero, so I give you two choices, first, surrender, and second, let me completely obliterate your soul and let you enter the six reincarnations. There is no chance." Lu Chen said sternly.

"Gu Chen child, this seat is the ancestor god, you are a mysterious immortal, and you want this seat to surrender you?" The Black Prison Mountain Lord laughed.

It's just that his laughter is a bit sad. Once upon a time, he would have thought that one day he would be threatened by a mysterious fairy?

"Black Prison Mountain Lord, it's a good thing to say. The hero doesn't mention that you were brave in the past. Your body is dead, and what is left is only the soul. Now you are still qualified to negotiate with me? If you refuse, then don't blame my subordinates. Ruthless." Lu Chen said coldly.

Although the Lord of the Black Prison Mountain was suppressed by the Qiankun Soul Seal, he was still an ancestor **** no matter what, Lu Chen could not keep him forever.

The Black Prison Mountain Lord fell silent, his expression struggling.

As an ancestral god, letting him surrender to a human Xuanxian is more uncomfortable than killing him.

"It seems that you have already made a choice. In that case, I can only completely obliterate you." Lu Chen said calmly. After saying this, Lu Chen immediately gathered his spiritual strength to make the world soul imprint.

"Wait a minute, this seat, this seat promises you." The Black Prison Mountain Master said anxiously.

"Promise me what?" Lu Chen asked.

"This seat promises to surrender you." Black Prison Mountain Lord gritted his teeth and said.

"Since you surrender to me, why do you dare to call yourself this seat? I think you clearly don't want to." Lu Chen shouted coldly.

"The old man pays his respects to the master." The Black Prison Mountain Master sighed and said bitterly.

"Okay, hahaha, Black Prison Mountain Lord, you are willing to surrender to me, I am very happy, but I am still a little worried. In this way, you make an oath of the demon that you will never betray me forever." Lu Chen laughed.

"Oath of Heavenly Demon?" The Black Prison Mountain Lord's expression changed. The Oath of Heavenly Demon is the most severe oath of the Heavenly Demon Clan. Once it is established, even the ancestors cannot violate it, otherwise they will be condemned to death.

It turned out that he just wanted to compromise with Lu Chen first, and then look for a chance to escape, but he didn't expect that Lu Chen would not give him this opportunity at all.

"Why, you don't want to?" Lu Chen asked coldly.

"The old man obeys his orders." The Black Prison Mountain Master gritted his teeth, knowing that he had no choice but to make the oath of the devil and completely surrender to Lu Chen.

"Okay, Black Prison Mountain Lord, if you surrender to me, I will naturally not treat you badly." Lu Chen laughed and thought, the Universe Soul Seal flew away from the Black Prison Mountain Master.

"Thank you, Master."

The Black Prison Mountain Master loosened his body, looked at Lu Chen, sighed, and bowed his hands. Now he has no choice but to work for Lu Chen.